upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 353

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

14.2.2 Port 1
in 1-bit units (software pull-up function).
Port 1
Port 1 is a 6-bit I/O port for which I/O settings can be controlled in 1-bit units. A pull-up resistor can be connected
Bits 0, 1, 2, 4, and 5 are selectable as normal outputs or N-ch open-drain outputs.
Remark
Notes 1. Software pull-up function
Port 1 includes the following alternate functions.
After reset: 00H
P1
Pin Name
2.
In input mode:
In output mode:
µ
PD703014AY, 703014BY, 703015AY, 703015BY, 703017AY, 70F3015BY, 70F3017AY only.
P10
P11
P12
P13
P14
P15
P1n
0
1
7
0
R/W
Output 0
Output 1
SO0
SO1/TXD0
SI0/SDA
SCK0/SCL0
SI1/RXD0
SCK1/ASCK0
6
0
When port 1 (P1) is read, the pin levels at that time are read. Writing to P1
writes the values to that register. This does not affect the input pins.
When port 1 (P1) is read, the P1 values are read. Writing to P1
writes the values to that register, and those values are immediately output.
Alternate Function
Table 14-3. Alternate Functions of Port 1
Note 2
Note 2
CHAPTER 14 PORT FUNCTION
P15
5
User’s Manual U12768EJ4V1UD
Control of Output Data (in Output Mode) (n = 0 to 5)
Address: FFFFF002H
P14
4
I/O
I/O
P13
PULL
Yes
3
Note 1
Selectable as N-ch open-drain output
Selectable as N-ch open-drain output
P12
2
Remark
P11
1
−
P10
0
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